Question

the ratio of the weight of zinc to the weight of copper in an alloy is 3:5. if the weight of the alloy is 16kg, find the weight of copper present in it. also, find the weight of the alloy​

Answer 1

Answer:

Weight of copper in the alloy is 10 kg. and weight of zinc in the alloy is 6 kg.

Step-by-step explanation:

Given :

Ratio of weight of zinc to the weight of copper = 3 : 5

Part of zinc in the ratio =3

Part of copper in the ratio =5

Sum of ratio = 3 +5= 8

Weight of alloy= 16 kg.

Weight of copper in the alloy=(part of copper in the ratio /sum of ratio ) × total weight of alloy

                                                =( 5/8 ) × 16

                                                = 5 × 2

                                                =10 kg.

Weight of zinc in the alloy = (part of zinc in the ratio /sum of ratio ) × total weight of alloy

                                          = (3/8) × 16

                                          = 3 × 2

                                          = 6 kg.

Answer 2

Answer:

The ratio of the weight of zinc to the weight of copper in an alloy is 3:5. if the weight of the alloy is 16kg, then the weight of copper present in it is 10kg . also, the weight of the alloy​ is 16 kg.

Step-by-step explanation:

If the common multiple is x.

Then weight of zinc = 3x kg

and the weight of copper is = 5x kg

If the weight of the alloy is 16kg

then 3x + 5x = 16kg

8x = 16

x = 16/8

x = 2 kg

So, the weight of zinc = 6 kg

and the weight of copper is = 10 kg

The weight of alloy is 16kg.